// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef NET_TOOLS_QUIC_QUIC_PER_CONNECTION_PACKET_WRITER_H_
#define NET_TOOLS_QUIC_QUIC_PER_CONNECTION_PACKET_WRITER_H_

#include <stddef.h>

#include "base/macros.h"
#include "net/quic/quic_connection.h"
#include "net/quic/quic_packet_writer.h"

namespace net {

// A connection-specific packet writer that wraps a shared writer.
class QuicPerConnectionPacketWriter : public QuicPacketWriter {
public:
    // Does not take ownership of |shared_writer|.
    QuicPerConnectionPacketWriter(QuicPacketWriter* shared_writer);
    ~QuicPerConnectionPacketWriter() override;

    QuicPacketWriter* shared_writer() const { return shared_writer_; }

    // Default implementation of the QuicPacketWriter interface: Passes everything
    // to |shared_writer_|.
    WriteResult WritePacket(const char* buffer,
        size_t buf_len,
        const IPAddress& self_address,
        const IPEndPoint& peer_address,
        PerPacketOptions* options) override;
    bool IsWriteBlockedDataBuffered() const override;
    bool IsWriteBlocked() const override;
    void SetWritable() override;
    QuicByteCount GetMaxPacketSize(const IPEndPoint& peer_address) const override;

private:
    QuicPacketWriter* shared_writer_; // Not owned.

    DISALLOW_COPY_AND_ASSIGN(QuicPerConnectionPacketWriter);
};

} // namespace net

#endif // NET_TOOLS_QUIC_QUIC_PER_CONNECTION_PACKET_WRITER_H_
